| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery superior in high-temperature resistance.SOLUTION: A nonaqueous electrolyte secondary battery comprises: a positive electrode including a positive electrode active material; a negative electrode; a resin microporous film disposed between the positive negative electrodes; and a nonaqueous electrolytic solution. The nonaqueous electrolytic solution contains, as electrolytic salts, LiPFand a lithium imide salt. The nonaqueous electrolyte secondary battery further comprises a porous film disposed between the positive electrode and the resin microporous film, and including heat resistant fine particles and a binder resin. |
